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VULNERABILITIES

CVE-2020-36387 Details

Description

An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2 CVEMailing ListPatchRelease NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d816e088c359866f9867057e04f244c608c42fe CVEPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20210727-0006/ CVEThird Party Advisory
https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-io_async_task_func CVEPatchThird Party Advisory
https://syzkaller.appspot.com/bug?id=ce5f07d6ec3b5050b8f0728a3b389aa510f2591b CVEPatchThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

ProductVersions

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-36387
NVD Published Date:
Jun 7, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-36387 Details - Not Deferred